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CMake: Fix for QT 5.7 overwriting -std=c++1y flag

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In QT 5.7 they added a new check for CXX features which appends a minimum
required standard to the CXX_FLAGS. Because we were writing the flag
directly previously, cmake assumed it needed to add a c++11 flag to the
build. This tells cmake to use c++14 on every build.
This commit is contained in:
James Rowe 2016-06-30 11:59:32 -06:00
parent e91327c86a
commit a976c2e3ba
2 changed files with 8 additions and 6 deletions
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4
.travis-deps.sh
View File

@ -9,7 +9,7 @@ if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
export CXX=g++-6
mkdir -p $HOME/.local
curl -L http://www.cmake.org/files/v3.1/cmake-3.1.0-Linux-i386.tar.gz \
curl -L http://www.cmake.org/files/v3.2/cmake-3.2.0-Linux-i386.tar.gz \
| tar -xz -C $HOME/.local --strip-components=1
(
@ -21,6 +21,6 @@ if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
brew update > /dev/null # silence the very verbose output
brew unlink cmake
brew install cmake31 qt5 sdl2 dylibbundler
brew install cmake qt5 sdl2 dylibbundler
gem install xcpretty
fi

10
CMakeLists.txt
View File

@ -1,6 +1,5 @@
# CMake 3.1 required for Qt5 settings to be applied automatically on
# dependent libraries and IMPORTED targets.
cmake_minimum_required(VERSION 3.1)
# CMake 3.2 required for cmake to know the right flags for CXX standard on OSX
cmake_minimum_required(VERSION 3.2)
function(download_bundled_external remote_path lib_name prefix_var)
set(prefix "${CMAKE_BINARY_DIR}/externals/${lib_name}")
@ -63,8 +62,11 @@ if (NOT DEFINED ARCHITECTURE)
endif()
message(STATUS "Target architecture: ${ARCHITECTURE}")
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if (NOT MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -Wno-attributes")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-attributes")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
else()
# Silence "deprecation" warnings